To send digital information, we must devise analog signals to represent bits. Th

Question

To send digital information, we must devise analog signals to represent bits. The process of converting between bits and signals that represent them is called digital modulation. With digital modulation:

A.the most straightforward form of digital modulation is to use a positive voltage to represent a 1 and a negative voltage to represent a 0, a scheme called NRZ (Non-Return-to-Zero)

B.schemes that directly convert bits into signals (occupying frequencies from 0 up to a maximum) result in passband transmission

C.it is possible to share a channel by multiple signals, this scheme is called baseband transmission

D.all of the above are true

Explanation / Answer

Hi,

Below is the correct Answer-

A. The most straightforward form of digital modulation is to use a positive voltage to represent a 1 and a negative voltage to represent a 0, a scheme called NRZ (Non-Return-to-Zero).

Regards,

Vinay Singh

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